The nonradiative changeover prices Adhere to the formula WNR = W (0) exp(-alphap), the place p is the volume of phonons matching the Vitality hole. The nonradiative transition premiums of Er3+ show temperature dependence in keeping with the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative peace prices https://er-yb-yab-crystal26048.myparisblog.com/33827549/not-known-factual-statements-about-er-yb-yab-crystal